No Acceleration at 40MPH - Page 4

raul10141964 · 06-09-2015, 09:26 PM

Do you have the stoke air filter or a high performance
With high performance filter you need bigger main jet

Lilfrog · 06-15-2015, 12:30 AM

haven't checked valve clearance yet but i don't think that would be causing this issue.

any help appreciated! I bought the bike to learn about it so i don't mind all the problems but it would be nice to finally get it working right.[/quote]

I decided to check my valve clearance. I removed the exhaust side valve inspection caps and it looked like there was way too much clearance and that the gap would have to be smaller to be in the range of specs. I decided to look under the other inspection plate and to my surprise both adjusting screws and nuts! Not sure if when the prior owner had it's initial valve clearance adjustment that they somehow took out the screws and nuts and forgot to put them back in. I'm not sure how the bike was even running in the state it was in. I have to order parts and hopefully will have it back together next weekend. Crossing my fingers after the fix that I will be able to reach the top speed it's rated at.

alantf · 06-15-2015, 05:11 AM

I'm no mechanic, but is it possible (someone may come in here) that the locknuts came loose, the screws vibrated loose, and they've dropped somewhere in the engine?

Water Warrior 2 · 06-15-2015, 03:45 PM

Yipes !! Be glad the bike quit running and didn't turn into a grenade. Now you need to find those wandering parts.

06-09-2015, 09:26 PM	#31
raul10141964 Senior Member Join Date: Apr 2012 Location: Elkhart, Indiana Posts: 369	Do you have the stoke air filter or a high performance With high performance filter you need bigger main jet Login or Register to Remove Ads
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06-15-2015, 05:11 AM	#33
alantf Senior Member Join Date: Nov 2008 Location: Tenerife (Spain) Posts: 3,719	I'm no mechanic, but is it possible (someone may come in here) that the locknuts came loose, the screws vibrated loose, and they've dropped somewhere in the engine? __________________ By birth an Englishman, by the grace of God a Yorkshireman. Login or Register to Remove Ads
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06-15-2015, 12:30 AM	#32
Lilfrog Junior Member Join Date: May 2015 Posts: 2	haven't checked valve clearance yet but i don't think that would be causing this issue. any help appreciated! I bought the bike to learn about it so i don't mind all the problems but it would be nice to finally get it working right.[/quote] I decided to check my valve clearance. I removed the exhaust side valve inspection caps and it looked like there was way too much clearance and that the gap would have to be smaller to be in the range of specs. I decided to look under the other inspection plate and to my surprise both adjusting screws and nuts! Not sure if when the prior owner had it's initial valve clearance adjustment that they somehow took out the screws and nuts and forgot to put them back in. I'm not sure how the bike was even running in the state it was in. I have to order parts and hopefully will have it back together next weekend. Crossing my fingers after the fix that I will be able to reach the top speed it's rated at.
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06-15-2015, 03:45 PM	#34
Water Warrior 2 Senior Member Join Date: Dec 2006 Location: Squamish B.C Canada Posts: 11,409	Yipes !! Be glad the bike quit running and didn't turn into a grenade. Now you need to find those wandering parts.
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