Register FAQ Community Calendar Today's Posts Search
Go Back   ScootDawg Forums > Performance :: Maintenance :: Technical > 50cc - 124cc
Reply
 
Thread Tools Search this Thread Display Modes
Old 10-01-2018, 04:49 PM   #1
kz1000st   kz1000st is offline
 
kz1000st's Avatar
 
Join Date: Oct 2008
Location: Hyde Park, NY
Posts: 1,068
The flywheel has a T and an F mark on them. When you set the valves did you use the T or F? T is top dead center the F is where the spark plug fires which is always in advance of the piston reaching top of the crankshaft throw.

I made that mistake once and it upset my cam timing and valve adjustments. Resetting everything right had the motor humming.
__________________
2008 Eagle Milano 150- 9,679 miles
2009 Honda Rebel 250- 10,434 miles
2009 CF Moto Fashion- 16,023 miles
2009 MC-114 50cc Cub Clone- 4,317 miles
twowheeler.yolasite.com/

That's 30,049 China Scootin miles and Counting.



Login or Register to Remove Ads
  Reply With Quote
Old 10-22-2018, 05:04 PM   #2
Randall   Randall is offline
 
Join Date: Sep 2018
Posts: 5
Quote:
Originally Posted by kz1000st View Post
The flywheel has a T and an F mark on them. When you set the valves did you use the T or F? T is top dead center the F is where the spark plug fires which is always in advance of the piston reaching top of the crankshaft throw.

I made that mistake once and it upset my cam timing and valve adjustments. Resetting everything right had the motor humming.
Yes, I made sure that I adjusted the valves at Top-Dead-Center using the "T" mark on the flywheel.

Is it likely that my motor has lost compression??? .....I do not have a compression tester, although I could rent one, but I'd still have to buy an adapter to fit that size plug. Would a compression test be worth my $?
  Reply With Quote
Reply

Tags
139qmb, 49cc, 50cc, gy6, will not start


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 01:51 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.