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YZ302F Review.
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Posted by: endosports---------------------

I called EG to see if he offered this kit but he explained to me that he didn't have the kit available.

Rick Peterson Motorsports performed the engine work. Here's what it takes to get it to 302.

Bore Cylinder to 79.00 mm. Stroke crank, replace with long rod kit(no specs provided), Mod upper motor mounts, mod oil return line(lengthen), rejet to 180mn, 52 pilot, adjust tps, install spacer with 2 gaskets at the cylinder base.

The power increase is very impressive, Rpm's dyno chart show a gain in 7 ponies. I have geared the bike up to 14/48 and the bike pulls wheelies easy though all the gears. Dr. D wet sump kit is on the bike and I have added a Yamaha engine hour meter for maintenence. This is not a cheap Mod by any means but it really brings the bike alive.

Now who will be the first to offer a complete kit? Is it possible and if your 250f has already gone though the crank this would be a nice option. :thumb:

Posted by: endosports---------------------

Also lengthen the timing chain and tensioners.

Posted by: Okiewan---------------------

$2,700.00? WOW! Not me.

Posted by: endosports---------------------

2,677.44 to be exact.

How does 650.-- just for the rod kit. That's 3 parts...must be made out of gold.

RPM can be overpriced. I told my customer to go with EG but he insisted on having the biggest there is out there.

Who knows how long the thing will last but I will keep you posted.

Posted by: Senior KX Rider---------------------

Quote:

Originally posted by endosports

Who knows how long the thing will last but I will keep you posted.

Keep us posted. I am curious about the longevity of that motor too

Posted by: endosports---------------------

It has 1.4 hours on it so far.

Posted by: Roost165---------------------

Um 2 grand why not just buy a YZF450? Or am i just crazy?

Posted by: osheen---------------------

Quote:

Originally posted by Roost165
Um 2 grand why not just buy a YZF450? Or am i just crazy?

Because the 450 is an open bike. Some of us don't want an open bike. I can't wait for the day Yamaha builds a YZ350F............

Posted by: endosports---------------------

oh yeah forgot to mention that it takes a CR9 instead of an 8.(Plug)

Posted by: Faded---------------------

He strokes the crank by moving the pin 8mm out ward. The rod is 8mm longer than stock (I beam style). He also shaves and drills out the crank to make up for the heavier rod and then rebalances it with steel inserts.

Posted by: holeshot---------------------

Craig Davis rode a 302YZF to the Pro class win at the OTHG Stawest race on Sunday. Everyone thought he was on a 450

. He had quite a battle with Gordon Ward on a CRF450 (rarely 3 feet separating them) but he went 2-1.

He pulled a great start in the first moto (combined pro/expert start). The thing hauled, but 2700 bucks, sheeesh.... :scream:

Posted by: endosports---------------------

Quote:

Originally posted by holeshot
Craig Davis rode a 302YZF to the Pro class win at the OTHG Stawest race on Sunday. Everyone thought he was on a 450 . He had quite a battle with Gordon Ward on a CRF450 (rarely 3 feet separating them) but he went 2-1.

He pulled a great start in the first moto (combined pro/expert start). The thing hauled, but 2700 bucks, sheeesh.... :scream:

It costs to be cool! And a faster.

Posted by: sjph23---------------------

I`m pulling my motor out tonight and sending it to R.P.M for the 302 kit. Do you have any regrets with your bike? Any problems at all?
Thanks, Steve

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YZ302F Review.

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