tomcat404

Quick question please boys and girls. will a gas gas JTX 370cc engine easily swap over for a busted gas gas 270 jtx? using the same parts etc other than the cdi unit? any thoughts would be appreciated, Nath

thanks Jon. It would appear to be a better option than repairing the original engine, thanks Nath

Quick question please boys and girls. will a gas gas JTX 370cc engine easily swap over for a busted gas gas 270 jtx? using the same parts etc other than the cdi unit? any thoughts would be appreciated, Nath

Good evening all. New rider on the block so please be gentle lol I bought a 97 gas gas JTX 270 about 2 months ago and have done roughly 2 tank full before the bike struggled to idle without a little reving. I took the bike to my local specialist and he stripped most of it down and cleaned it and that still didn't solve the problem. I changed the carb today for a good second hand carb with throttle etc full cleaned and stripped and fresh tank of 70:1 mix. The bike started first kick but the idle was all over so I have adjusted the fuel screw to 3-3.5 tuns out from fully in and tried to adjust the idle screw to suit. The bike idled well for short while and then the fan kicked in for a few mins then a little water via the cap run off and now it won't start at all. The carb is full of fuel, I have compression on the kick start, and I have a spark at the plug but not sure how strong it should be? any advise would be really appreciated, thanks nath UK