[mjager]

Hi Folks, newbie here and a couple of questions. I just bought a low mile (2000k) 87 Yamaha 340 Enticer. It is in great to excellent overall condition.

On my second ride the other day, the sled seemed to bog and billow blue smoke upon start up. It reved very high until the clutch engaged. It had new plugs but I put the old one's back in and the problem went away...temporarily. After riding in some pretty deep snow at temps around 2 C (34F) it started doing it again, bogging but no blue smoke. I took it out to the hard packed road and opened it up to try to clear it out. Seemed OK for a bit and then it just bogged out, quit, and would not restart. It started again after about an hour. Have'nt tried it since.

The sled has new gas in it and everything looks good on it, the previous owner took very good care of it. Could it be that it overheated in the relativley mild temps? Or should I start looking at fuel related possible problems?

Your advice will be greatly appreciated!

Mike





Edited by - mjager on 06 Jan 2002 08:39:59

 

[spaceman]

That sled should ride all day at 34 F. I'd look towards fuel probs. Also since you said your new , always remember that a bad belt will give the apearance of a fuel bog. But that wouldn't affect starting. And on some odd thing ,some plugs{very few} are 'junk' right out of the box. also check the choke cable it should have a wee bit of free play when its off-choke{slide its boot up the cable a little way to check} Let me know!

Spaceman
Mean Green Racing
Elyria, Ohio

 

[mjager]

Thanks for the quick reply spaceman17. I've checked some of your suggestions...specifically, what should I look for in the belt? I've just taken it off and it looks perfect. With regards to fuel problems, any ideas on what the carb settings for this model should be?

Thanks again!

mjager

 

[spaceman]

When a belt wears, it gets thinner, as it thins it changes the "gear ratio". It then would be like trying to take off on a dirt bike in 2nd gear, BBBBBOOOOOOGGGG! You need a spec. sheet or a svc. manual to find your proper belt width, carb adjustments and so on. Or if you have a nice dealer, he'll tell you. In my experience though, dealers say; "just bring it on in" and I was always to poor for that. so I get the manuals and do my own work. And now after doing it so long, I don't trust anyone other than myself. Know what I mean?


Spaceman
Mean Green Racing
Elyria, Ohio

 

[Skrplyr23]

Spaceman is right, i would deffinately check the choke cables first. I take mine out about twice a year and put some sewing machine oil on my fingers and rub it on the choke pistons, this keeps them pretty loose. On the belt, check for scorching on the belt. (real shiny spots on the belt that feel really realy smoth when you rub your finger on it)