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  Topic Review (Newest First)
05-01-2019 04:43 PM
Deephaven Bummer on the motor. Did sound like that was probably the case. Conveniently it is a single cylinder and looks pretty easy to do!
05-01-2019 11:26 AM
Toma Also I'm sure it's not the compression gauge that's messing up cos I was reading 100+ on a 250 farm quad lol
05-01-2019 11:24 AM
Toma Thanks bud I'm glad you appreciate it ahah and yeah at least I'm certain on that now so I guess I'll just have to let it sit till I save up enough to give it a rebuild im just worried if it has modded internals too now
04-30-2019 09:04 PM
Footy That is one heck of a custom race bike you have there! I think you may need an engine rebuild based on those psi values. Anything below 110 psi is usually not good.
04-30-2019 08:18 PM
Deephaven I would slap that compression gauge on something else and check it. About 30-40lbs with only one cylinder it may be the gauge. My buddies is about 20psi low on his gauge. With a 2 cyl you can at least make sure it is balanced. That low though it is doubtful it is the gauge.
04-30-2019 08:05 PM
Toma M-quick here is the pics of the rear bumper
04-30-2019 08:02 PM
Toma Well I did a fair bit to it tonight I tested the voltage when cold and hot and revving and it strayed around 15v so that's all good, I adjusted my valve clearences and that seemed a bit certianly made it easier to start so they must have been out. Flushed the coolant system and tested the thermostat in the kettle and it opened but I didn't have access to a thermometer so I suppose I'll have to test it again sometime, and did a compression test and got 90psi dry and 95psi with oil in the cylinder I have no idea what good compression is in a xx tho. Haven't had a chance to test it properly yet to see if it splutters as it's all in bits still but I'll test it tomorrow and let you know
04-30-2019 09:22 AM
Toma No I'm not positive I do think it could be a issue with the cooling system I'll try and test the thermostat tonight and yes I figured from one of your other posts but I still greatly appreciate the assistance lol
04-29-2019 10:54 AM
Deephaven Positive that the water temp is okay as well? Not some forced limp mode?

...a quick caveat, I am a motor head but have only had a 700xx for a couple weeks and don't know what it does in which situations. Just offering troubleshooting and thoughts I have experienced on other types of machines.
04-29-2019 09:11 AM
Toma And yes seems to be fine when cold no spluttering for at least 7 mins of riding
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