02 Prairie Not Firing?

Hammer9 · 11-17-2008

This is a project bike but everything seems to be fine on it! It cranks over, has spark, smells like its getting fuel but no firing. If i leave the throttle open for just a couple of seconds it will back fire a little bit. Does anyone have any ideas on what it could be or what to try?

86klf300guy · 11-17-2008

hello well first id check compression ,if it is low it will not generate enough pressure to make a boom, if the compression is over 120 then id ajust the valve lash, maybe the valves are hangin open just a bit to much, this would cause low comp also. but i suspect maybe the timing is off a bit-corey-

Hammer9 · 11-19-2008

It very well could be the timing! I tried to set it but couldn't find the TB or TF marks on the generator. Is there another way to set the timing or do you have to go by those marks. I set both sides at full compression when I did it. Do you need a special tool to check compression? Thanks for your help you guys are awesome!

86klf300guy · 11-19-2008

yea, you need to go bye the tester gauge itll come with adapters to fit your plug thread. itll run like 30 -100 depnding on what kit you get ,and you may have to get some cleaner and clean the fly wheel off due to grud build up. the marks are stamped on the flywheel, just dirt etc builds up and fills those marke in and make it a pain to see em.non choleanted brake parts cleaner will do nicely,for it does not leave a film on the parts -corey-

fb0226 · 11-19-2008

Quote:

Originally Posted by 86klf300guy

yea you need to go bye the tester gauge itll come with adapters to fit your plug thread itll run like 30 -100 depnding on what kit you kit and you may have to get some cleaner and clean the gen off of it grud build up itll be on there -corey-

If you have a Harbor freight tools store near you, you can get one there for 15-20.00

86klf300guy · 11-19-2008

Quote:

Originally Posted by fb0226

If you have a Harbor freight tools store near you, you can get one there for 15-20.00

dang thats cheap! i wish i knew about this place before i bought the hole kit form snap-on.it costed me 150.00$ for the hole kit.but i can test all motors,even weed whippers lol.now i am goin out back and hang my self .....nah ill just kick my self instead...corey

11-17-2008	#1 (permalink)
Hammer9 Newbie Join Date: Oct 2008 Posts: 12	02 Prairie Not Firing? This is a project bike but everything seems to be fine on it! It cranks over, has spark, smells like its getting fuel but no firing. If i leave the throttle open for just a couple of seconds it will back fire a little bit. Does anyone have any ideas on what it could be or what to try?

11-17-2008	#2 (permalink)
86klf300guy Way Too Much Free Time BTK Expert Join Date: Feb 2008 Location: some where in ohio Posts: 1,203	hello well first id check compression ,if it is low it will not generate enough pressure to make a boom, if the compression is over 120 then id ajust the valve lash, maybe the valves are hangin open just a bit to much, this would cause low comp also. but i suspect maybe the timing is off a bit-corey- Last edited by 86klf300guy : 11-19-2008 at 07:09 PM.

11-19-2008	#4 (permalink)
86klf300guy Way Too Much Free Time BTK Expert Join Date: Feb 2008 Location: some where in ohio Posts: 1,203	yea, you need to go bye the tester gauge itll come with adapters to fit your plug thread. itll run like 30 -100 depnding on what kit you get ,and you may have to get some cleaner and clean the fly wheel off due to grud build up. the marks are stamped on the flywheel, just dirt etc builds up and fills those marke in and make it a pain to see em.non choleanted brake parts cleaner will do nicely,for it does not leave a film on the parts -corey- Last edited by 86klf300guy : 11-19-2008 at 07:07 PM.

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11-19-2008	#3 (permalink)
Hammer9 Newbie Join Date: Oct 2008 Posts: 12	It very well could be the timing! I tried to set it but couldn't find the TB or TF marks on the generator. Is there another way to set the timing or do you have to go by those marks. I set both sides at full compression when I did it. Do you need a special tool to check compression? Thanks for your help you guys are awesome!

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