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Old 05-05-2008, 08:47 AM   #1
ZXALAN
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Advice on a TB88 race kit...

Posted this over in the mini section by mistake but....

Any tips or info that would be helpful to know about a Trail Bikes 88cc race kit for a CRF50? I read a lot of good things about the kit but I have also read about a lot of overheating and oil leaking problems also.... I still want the bike to be able to idle in the pits and put around without getting it too hot etc...

I will probably go up 1 tooth on the front to start out.

Also, do you have to bore the cases for an 88cc? Is the kit a pretty simple bolt in? I will be getting the head/cam/big bore/carb etc....

Your thoughts?
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Old 05-05-2008, 11:16 AM   #2
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you dont really need the race head kit, unless you are going to be racing. The 88 kit with cyl, piston, cam, and carb works great. Simple bolt on. You will need +1 front sprocket, and a HD clutch. I also recomend the HV oil pump(clutch and cyl must be off for the oil pump install, requires a 2mm drill bit to enlarge a hole.)
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Old 05-05-2008, 04:13 PM   #3
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Thats pretty much what I have read other then the head part.....it seems most guys recommend the race head? Any downside to installing the race head? does it kill the bottom end power or something? I know the race kit uses a different cam for the race head....

I just don't want to have overheating problems etc with it, nor do I want to have starting problems with it..... Mine starts on one kick now with no choke and I don't want to kill the reliability..
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Old 05-06-2008, 01:19 AM   #4
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if you have the money and want to spend it, the race head is great, Shouldnt over heat unless you are under a heavy load for an extended period of time like racing, then you would need an oil cooler. With the carb tuned properly it will start first kick.

If you need help on the install, bring it to my house.
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Old 05-06-2008, 07:02 AM   #5
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Quote:
Originally Posted by josh302 View Post
if you have the money and want to spend it, the race head is great, Shouldnt over heat unless you are under a heavy load for an extended period of time like racing, then you would need an oil cooler. With the carb tuned properly it will start first kick.

If you need help on the install, bring it to my house.
Hey thanks for the offer bro....I think I got it covered....only thing I am unsure about is taking the clutch assy apart without the manual. Its no biggie though... I gotta look up about setting the cam timing etc. I am ordering the kit today and some extra jets....That is one of my pet peeves, not having a bike jetted 100% right.
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Old 05-06-2008, 08:05 AM   #6
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sounds like you're on the right path. if you need any help just let us know. Josh^^^ is a guru, and there are a few of us lurking around here that are pretty knowledgeable too. . .
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Old 05-06-2008, 09:47 AM   #7
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Quote:
Originally Posted by ZXALAN View Post
Hey thanks for the offer bro....I think I got it covered....only thing I am unsure about is taking the clutch assy apart without the manual. Its no biggie though... I gotta look up about setting the cam timing etc. I am ordering the kit today and some extra jets....That is one of my pet peeves, not having a bike jetted 100% right.
clutch is easy, you need a clutch nut tool(spanner socket). dont overtighten nut on reinstall, like 30ft lbs.
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