Author Topic: Help I broke my bike. (Read 9132 times) Tweet

mysticblu999 · « **on:** July 04, 2012, 11:30:47 AM »

So I finally decided to go to a drag strip. Most fun I've ever had on the bike btw. I notice my chain is a little tight but my dumb ass decided to keep going(First time at the strip and no tools). I go home and I fill with c16 and turn the boost up for the next test and tune. UH OH! clicking feeling that feels like its skipping a tooth. I now notice the chain is looser than it was.

Loosen the chain and try again. No good. Noticed a tight spot in the chain so not worrying too much, ordered a new EK ZZZ. Just put in on an hour ago with a new sprocket.

IT STILL DOES IT.

WHAT HAVE I FUCKED UP? Guessing I'm going to have to split the cases? 6 over arm, race trans, and big output shaft in the motor. Motor is strong but maybe not idiot proof

mysticblu999 · « **Reply #1 on:** July 04, 2012, 11:33:49 AM »

Oh and it does it in all gears.

confused-busa · « **Reply #2 on:** July 04, 2012, 11:44:35 AM »

check other sprocket for any wear. Grab the output shaft and see if there is excesive play in either direction.

mysticblu999 · « **Reply #3 on:** July 04, 2012, 11:47:16 AM »

Front sprocket looks new i'll go out and check for play right now

mysticblu999 · « **Reply #4 on:** July 04, 2012, 11:57:19 AM »

No play what so ever. It still has a bone stock cluch with heavy springs with over 30k on them. 20k boosted. Still has the back torque thing. Could that be the culprit? 400hp

turbojonn · « **Reply #5 on:** July 04, 2012, 02:22:23 PM »

Check the cush drives. Maybe you terminally destroyed one launching. That would be a cheap and easy fix...45 bucks and 1/2 an hour. Does the click keep time with the wheel rotation, or with the output shaft rotation, or neither?

mysticblu999 · « **Reply #6 on:** July 04, 2012, 02:27:22 PM »

Cush drives are new. Only does it when I roll into boost.

2wicked · « **Reply #7 on:** July 04, 2012, 03:03:47 PM »

What size sprockets and how tight is your chain?

Richard

mysticblu999 · « **Reply #8 on:** July 04, 2012, 03:21:05 PM »

18/46 currently on the bike. From the bottom up it moves about 2"

mysticblu999 · « **Reply #9 on:** July 04, 2012, 04:10:57 PM »

Double checked my chain adjustment and all is good. Happening just like the old chain did it. I noticed that it only does it in 1st and 2nd. I'm hoping its the 30k mile clutch assembly

dave3.4 · « **Reply #10 on:** July 04, 2012, 04:17:49 PM »

how many miles are on the trans?
and you sure you have the chain tight enough?

Nem · « **Reply #11 on:** July 04, 2012, 05:08:20 PM »

Quote from: mysticblu999 on July 04, 2012, 03:21:05 PM

18/46 currently on the bike. From the bottom up it moves about 2"

How much you weigh?
how much slack in chain when you sit on it?
I had the same problem long ago running same gearing unless I kept chain way too tight for my liking.
Weighed 200 unsuited when problem was happening.
put a 19t sprocket on and problem gone

2wicked · « **Reply #12 on:** July 04, 2012, 07:03:08 PM »

Quote from: mysticblu999 on July 04, 2012, 03:21:05 PM

18/46 currently on the bike. From the bottom up it moves about 2"

Chain is way too loose for the power you are trying to use, tighten the chain,

Richard

mysticblu999 · « **Reply #13 on:** July 04, 2012, 07:40:29 PM »

Thanks for the help everyone. I was afraid it was too tight. I thought it needed to be looser for high HP. I will tighten it up tomorrow and see what it does. When I look at drag bike pics as they are launching the chain looks really loose. Would it be safe to say I should go for 1" of play?

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Nem · « **Reply #14 on:** July 04, 2012, 08:32:43 PM »

Try 1"

Check this video out....this is about 1" static play.....amazing what it does down the track.

http://www.youtube.com/watch?v=DXFeca5s134&sns=em

mysticblu999 · « **Reply #15 on:** July 04, 2012, 09:34:33 PM »

Oh WOW! No wonder mine is skipping. It really is way to loose. Thanks nem! Can't wait til tomorrow after work!

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mysticblu999 · « **Reply #16 on:** July 04, 2012, 09:37:00 PM »

Oh and I am 225 no gear. My fat ass must make it get really loose lmao

Happy 4th everyone!

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Nem · « **Reply #17 on:** July 04, 2012, 09:49:07 PM »

Yup....that with a 150# rider and 19/51 gearing

mysticblu999 · « **Reply #18 on:** July 04, 2012, 10:43:47 PM »

Oh and thanks for the vid nem, that explained everything to me

mysticblu999 · « **Reply #19 on:** July 10, 2012, 10:25:09 PM »

Update. You guys were right. 1" and all is good. Thanks a lot

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Nem · « **Reply #20 on:** July 10, 2012, 11:32:03 PM »

News:

Author Topic: Help I broke my bike. (Read 9132 times) Tweet