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In search of the most effective mods to make your CRF150F sooner? The Honda 150F is an easy path bike that’s meant for newbies, however there’s a boatload of upgrades obtainable to make it carry out nearer to an enduro bike.
Whether or not you’re on a funds and wish little extra energy, or wish to make your CRF150F an grownup play bike, this text will cowl all of it with no fluff.
Must you modify your CRF150F filth bike?
Many individuals wish to begin modifying their filth bike however they don’t cease and assume in the event that they ought to. Upgrading and modifying components could be actually enjoyable and assist enhance efficiency, but it surely actually depends upon the components you employ.
For instance, when you simply make your CRF150F sooner with engine and exhaust upgrades, then the inventory suspension received’t be capable to deal with the additional energy when you weigh over 130 lbs. It’s going to backside out simply, which cannot solely injury your bike, however it will possibly trigger an accident that will get your damage.
That’s why I wish to present you step-by-step which components and upgrades will likely be most useful primarily based in your particular wants and funds.
The 12 months The Honda CRF150F Modified
Earlier than transferring ahead, you could know that there are two totally different CRF150F fashions. Whereas it’s mainly nonetheless the identical kind of filth bike, the 150F obtained an engine change in 2006. From 2003-2005 it was mainly a de-stroked CRF230F engine with kickstart.
The newer engine is electrical begin, weighs much less, and is able to making fairly good energy for an air-cooled 4 stroke.
Earlier than modifying components such because the exhaust or piston, you could know which mannequin you could have. I’ll attempt to level that out when doable.
So, with out additional ado, listed here are the most effective mods which might be price your money and time to do:
Consumption Mods
If you need extra energy, you then want extra air to get to and thru the engine. The inventory consumption setup is dependable, but it surely’s considerably restrictive, so there are a few low-cost or free mods to present you extra energy potential.
Take away Snorkel
The inventory air field has a snorkel lid on it. That is to assist stop mud and water from moving into it, but it surely restricts the quantity of air getting in.
Eradicating this snorkel lid permits extra air to get in, which implies there’s extra potential for energy. It might have some glue on it, however you’ll be able to rip it off. It’s possible you’ll have to rejet the carb if it begins or runs poorly afterward.
CRF150F Jetting
The inventory jetting on the CRF150F is just too lean and you’ll simply get some extra energy out of it if it hasn’t already been modified.
Inventory CRF150F jetting:
- Pilot jet: 40
- Essential jet: 98
Really useful (un-corked) jetting:
- Pilot jet: 42
- Needle: Add 1-2 shims underneath the needle clip
- Essential jet: 110 or 115
Going as much as a 42 pilot and a 110 or 115 essential jet will make it begin simpler, run higher and have extra energy. Including a shim or 2 underneath the needle clip may even assist richen it up.
If the remainder of your bike is inventory then a 110 essential ought to work, but when it’s bogging at full throttle or you could have consumption/exhaust mods you then would possibly want a 115 essential jet.
As for the gasoline screw, it needs to be near 1.5 seems, but it surely actually depends upon your particular bike and the local weather you experience in. You’ll be able to regulate it for simpler beginning and higher throttle response in only a few minutes.
Carburetor Improve
Going to an even bigger carb is usually a good mod if the remainder of the engine/exhaust is larger. A 26mm XR200 carb is a standard improve and doesn’t require an excessive amount of work. You’ll want the XR200 throttle and cable to work.
You’ll be able to improve to a 26mm Nibbi carb from Amazon, however you’ll additionally want their consumption manifold to bolt onto your CRF150F engine. It’s Chinese language-made, so you might have to do some jet tuning and/or float adjusting to get it working properly. However, you’ll have extra energy and a greater throttle response after it’s correctly tuned.
Suspension Upgrades
When you get your CRF 150F carburetor dialed in to start out and run nice, it’s time to take a look at the suspension when you weigh over 130 lbs. The inventory forks and shock are respectable for path driving at low to average speeds, however they’re undoubtedly limiting efficiency and security when you’re heavier and/or extra aggressive.
Low-cost fork mods
The inventory forks are extremely comfortable for anybody over 130lbs until you’re simply driving on flat floor. You may have a couple of totally different choices which might be across the identical value, however they’re totally different mods in how they work.
Stiffer fork springs (Amazon) are the best solution to go. They’ll maintain you up higher and resist bottoming, all for lower than 100 bucks.
They’re nonetheless not going to really feel like high-tech forks as a result of easy valving, however you can too use heavier-weight fork oil (Amazon) to decelerate the compression & rebound damping, providing you with extra management over tough terrain. Elevating the fork oil peak may even scale back bottoming as a result of when there’s extra oil within the forks, they’re tougher to completely compress vs air.
Bear in mind to examine your OEM service handbook for optimum oil peak (min. air hole) or else your fork seals can blow out if there’s an excessive amount of oil.
DIY Valving with emulators
Race Tech has emulators for the CRF150F forks (Amazon) that provide the capability to tune the inventory forks to a level. They’re not far more costly than stiffer fork springs, and you will get your forks to carry out fairly a bit higher when you don’t thoughts taking them aside at the least a couple of times to get them dialed in.
It mainly turns them into higher-performing forks with higher damping in comparison with the straightforward inventory damper rods that mainly have one gap that the oil goes by way of, which is why it seems like a pogo-stick over bumps.
Ship Them To Bruce
In fact, you can too ship your 150F forks to somebody that’s specialised in standard DR (Damper Rod) forks, equivalent to Bruce Triplett. He is aware of the way to modify the inventory rods and comes to your weight and driving model to get you a surprisingly properly performing experience.
Shock Improve
The inventory shock isn’t any higher than the fork. In reality, it’s most likely worse due to the poor rebound that may buck you round in tough terrain.
It really works high-quality when you’re a newbie, however if you wish to experience your CRF150F quick, I strongly encourage you to improve to a stiffer shock spring (Amazon) or get a greater aftermarket rear shock.
Inventory Shock Rebuild
The OEM shock isn’t imagined to be rebuildable, but it surely’s been properly documented by homeowners that it’s doable when you have the time and instruments to take action. It’s undoubtedly the most cost effective route it you understand what you’re doing, however it is going to take a while to tear it down, modify some inside components, after which put it again collectively.
Aftermarket rear shock availability
Previously, Fox and Works shocks had been obtainable as an ideal improve to the inventory CRF150F shock, however they’re not made anymore.
You may get a Hagon rear shock that isn’t totally adjustable, however nonetheless an enormous enchancment in efficiency and luxury over inventory. Nevertheless, they’re additionally exhausting to search out as a result of they’re made and bought in Italy.
The best aftermarket shock to purchase is the Vonkat model (Amazon). It’s over 2 lbs lighter than inventory (unsprung weight), can deal with extra weight, and performs a lot better than inventory. It additionally has adjustable rebound damping and preload.
Rear shock conversion?
A CR80/CR85 shock could be swapped onto your CRF150F with a bit of bit of labor. It’s simpler on the 03-05 kick begin fashions as a result of there’s no battery field in the best way of the shock reservoir.
To put in a CR85 shock on a 2006+ CRF 150F you’d should re-locate the battery to the air field and take away the battery compartment to make room for the shock reservoir,
Gearing mods
Swapping sprockets is a fast and simple solution to change the gearing for acceleration or prime velocity, despite the fact that it doesn’t change the precise torque or horsepower.
Going up one dimension (Amazon) on the entrance sprocket will make 1st gear extra usable, particularly after some energy mods. Every gear may even last more and also you’ll get the next prime velocity out of your CRF150F
Finest Exhaust improve
Upgrading to an aftermarket exhaust is enjoyable and thrilling as a result of it sounds higher, seems to be cool, and you’ll doubtlessly get extra energy. There are a couple of choices in relation to exhaust components to mod or improve, so it depends upon what your particular wants & funds are.
Exhaust Baffle – low-cost mod
The inventory exhaust is definitely not too dangerous if the whole lot else is inventory. You’ll be able to take away the baffle finish cap on the tip of the muffler to get a bit of extra energy and throttle response, however it is going to produce extra noise than something.
Jetting is required to get the total good thing about this mod.
Low-cost aftermarket exhaust system
There are a couple of low-cost Chinese language aftermarket exhausts made to your Honda CRF150F, such because the YSMoto, JFG Racing, and Stonemen exhaust (Amazon), however you get what you pay for.
They’re all fairly shut in high quality in relation to supplies and fitment. They give the impression of being fairly cool, save weight, and sound higher than inventory, however there’s a superb probability that you just’ll want to make use of a hammer or noticed and welder to get an ideal match.
If in case you have extra time than cash, these are a superb choice when you want an inexpensive exhaust alternative.
Identify model aftermarket exhaust
A Professional Circuit exhaust system is comparatively cheap, the standard is nice, and it’s an all-around enchancment over inventory. It might or will not be obtainable from Amazon.
The very best system for a CRF150F might be the Large Gun, however is pretty loud. It comes with a detachable spark arrestor display screen and isn’t an excessive amount of costlier then the PC exhaust.
Finest Engine upgrades for efficiency & reliability
Whether or not you must rebuild your engine or simply need extra energy, engine upgrades may give you considerably extra energy. Nevertheless, a standard mistake is wanting on the horsepower quantity improve on these smaller path bikes.
For instance, you would possibly go from 10 HP to 13 HP, which doesn’t look like loads, however that’s 30% extra energy, which is large for efficiency positive aspects. Happily, it’s fairly simple to get these sorts of positive aspects on a low-performance filth bike such because the CRF150F.
Excessive Compression Piston
The inventory compression ratio is admittedly low to forestall detonation when you use low-quality gasoline. Merely elevating the compression will increase the torque, and you’ll nonetheless be capable to use premium pump gasoline.
One of many best methods to get extra energy out of your CRF150F is with a high-compression piston package (’06 & newer engines). So, when you really feel like putting in a brand new piston, or if you must exchange a worn-out OEM piston, that is a straightforward mod to get barely extra energy.
It’s an overbore dimension, so it is going to require boring your inventory cylinder out, which is simple for a superb machinist to do.
Large Bore Equipment
Want to switch the top-end? You would possibly as properly get a massive bore package. They’re not far more costly than a piston package and relying on the package, you’ll get a brand new matching cylinder with it.
Simply bolt on and experience with extra torque and horsepower whereas nonetheless being dependable. When you could have extra torque, you don’t should rev it as larger, in order that places much less put on on the engine, permitting it to final simply as lengthy or longer than a inventory engine.
Hotter Camshaft
Are you severe about getting energy out of your little Honda? A camshaft is required to uncork this engine, particularly when you have an enormous bore and extra compression.
The inventory cam may be very small and lazy, which is nice for a smooth-running newbie bike. However there’s undoubtedly extra potential while you set up the precise cam with a correctly sized engine and carb.
Internet Racing Cams is the most well-liked provider of camshafts for the CRF150F and comparable bikes.
Head Porting – the lacking hyperlink
Porting is usually checked out final, but it surely, in addition to the camshaft, is among the most necessary components of getting essentially the most out of your engine.
Consider the cylinder head ports as a straw in your milkshake. The inventory head is a small straw that’s simple to suck out a bit of bit, however you’re restricted on how a lot of the milkshake you will get in your mouth regardless of how exhausting you suck.
Changing it with a big straw, it’s a lot simpler to get a bigger quantity of that milkshake out of the cup.
That’s just like modifying the ports in your 4 stroke filth bike.
Now earlier than you go any additional, you could know that merely making the ports greater is not going to robotically offer you extra energy. In reality, you could make it worse when you don’t know what you’re doing.
That’s why it’s finest to take it to somebody that’s skilled with the CRF150F engine particularly. They may know what components of the port want work and the way to modify it primarily based on how the remainder of your consumption/engine/exhaust is constructed.
Stroker crank
Need a 250cc CRF150F? Engines Solely have an enormous bore and stroker crank package for the primary technology 2003-2005 mannequin.
It’s undoubtedly extra expensive, however the energy positive aspects are substantial over different easy mods, as you’ll anticipate.
Mix this package with a correctly ported head, a superb flowing exhaust, the precise cam, and an even bigger carb for superb enjoyable. It nonetheless runs on pump gasoline premium too.
Lightened Flywheel
In search of each final little bit of energy? Nicely, you’re not going to get it with a lightened flywheel.
However! You’re going to get a faster accelerating filth bike!
Eradicating weight from the flywheel received’t change the quantity of energy, it simply modifications the inertia of the engine. The lighter the engine weighs, the better it’s to get spinning.
That additionally means that it’s going to decelerate faster too. Usually this is able to be a trade-off, however the inventory CRF150F flywheel is so heavy that there’s little or no unfavorable influence.
Lightened Crank
Need to go all out? This mod is just not for the faint of coronary heart? When you’re getting the crankshaft stroked, you would possibly as properly have it lightened by somebody that is aware of what they’re doing. Having the crank lightened and balanced has an analogous impact as lightening the flywheel: sooner acceleration.
Finest Mods For Grownup or tall riders
Okay, so that you’re not simply constructing this candy 150F to your child, huh? It’s undoubtedly not a full dimension bike, however you’ll be able to modify some components to make the cockpit a bit of greater. The suspension additionally wants some consideration earlier than you experience it aggressively or else you could find yourself hurting your self.
Handlebars
First, some taller bars are most likely going to make it extra snug for you. Upgrading to some light-weight however stronger Professional Taper bars (Amazon) will resist breaking or bending a lot better so that you just don’t should give up driving after a easy tip over.
Wider Footpegs
The inventory foot pegs are fairly lame. They’re tremendous heavy for the way weak they’re, and so they simply aren’t extensive sufficient when you’re an average-sized grownup.
Upgrading to some aftermarket wider footpegs (Amazon) gives you extra stability and energy. This implies you could stand on the bike with extra confidence with out your foot slipping off. In addition they received’t bend as simply when you tip over on a rock or stump.
CRF150F massive wheel conversion?
The CRF 150F path bike solely got here with one wheel and tire dimension choice – 19/16″ entrance & rear. Nevertheless, some homeowners have put in full-size (21/18″) wheels from a CRF230F to make it taller and deal with higher.
Is it price changing? Nicely, I’d solely advocate it if you will discover an inexpensive set of used 230 wheels and when you don’t thoughts having the smaller 150cc engine. In any other case, it is likely to be price it to improve to the CRF230F mannequin for extra energy and bigger wheels.
Full listing of prime CRF150F mods
The very best mods to your Honda CRF150F path bike are:
- Take away consumption snorkel
- Exhaust Baffle
- Jetting
- Gearing
- Exhaust
- Carb Improve
- HC Piston
- Large Bore Equipment
- Camshaft
- Porting
- Stroker
- Lightened Flywheel
- Lightened Crank
Mods For Grownup Riders:
- Stiffer Suspension
- Taller Handlebars
- Footpeg/Re-locate
What Mods To Do First?
Have a funds and wish to stay to it for now? Right here’s the listing of first mods I like to recommend to your CRF150F Funds Efficiency Bundle:
- Take away snorkel
- Jetting
- PC Exhaust
- Fork mods/springs
- Shock mods
Will the CRF150F make you a greater rider?
Beginning on a mud bike that’s simple to experience is necessary if you wish to rapidly construct your confidence. The subsequent step is studying correct driving strategies and habits.
Able to take that subsequent step to turn into a greater and safer rider? I wish to enable you to get began the precise method: Click on right here to your free reward.
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