1985 ATC250ES 'Big Red'

[TobyBigRed]

Any other Big Red riders have any luck or experience with front fork extenders? I'm wanting a little lift, and I hear it's the only way to accomplish this on the front. I can fab a bracket for the back or just go up a size or two on tires. Another question, what jet/pipe combo do any of you know works well with this machine? Any of you experience any difference in switching to a K&N air filter? Sorry for the fast questions folks, I'm a new member and haven't been or worked on a trike since my Suzuki ALT50 days @ age 8. Thanks for any help and info!

[1grindking]

i think on the 250r & 350x there using moto cross down tubes off motorcycles? but not sure if thats gona wrk on the br

[skypilot]

hey toby big red, been lookin at the same thing for my 85 250es. do a search on mondex, a member here on the site. He has a radical 250es lifted and 'lawed! Let me know what u come up with, wanting to do a 2'' lift on mine!

[Thorpe]

Easiest way to lift the front end on a ES is to put a SX front end on it... Mondex's lift was extending the triple, and still using stock ES front forks... Zero travel benefit...

[matt86200x]

I had a 350x carb on my 250 with a cobra pipe, uni airfilter. On one of my 250sx's i have a trx300 carb completely stock, stock exhaust feels like it has a little more git up and go with the 300 carb i like it so far.

[MudBug]

This is the lift I done on my BR. I cut triple clamps off another scrapped bike and welded them underneath mine. Made a big difference!

[TobyBigRed]

Thanks for all the info guys, this helps a ton! @ Matt, I have a working carb off of an old FourTrax 300 (those things are so bulletproof), is this the carb you were talking about? If so, I might give it a shot! Also, with moving to the bigger carb, will it still need to be jetted for an aftermarket pipe?

[Mondexbrute]

Rear bracket lift

[Mondexbrute]

I run a full Cobra exhaust with a stock jetted carb, I have a FO 14 muffler (for a Ford Tractor) that I ned to weld on.

[matt86200x]

I run the 300trx carb with the stock exhaust. Works great so far without changing any carb setting at all at this point.

Thanks for all the info guys, this helps a ton! @ Matt, I have a working carb off of an old FourTrax 300 (those things are so bulletproof), is this the carb you were talking about? If so, I might give it a shot! Also, with moving to the bigger carb, will it still need to be jetted for an aftermarket pipe?

[TobyBigRed]

Thanks for the extra info! Any of you guys have a suggestion as to where to look for custom aftermarket trike wheels? I'm having horrible luck.

[skypilot]

Wow, this thread is great, I like all the pics, tryin to get my 85 BR lifted! Took it to a custom shop and they wouldn't touch it, said they were afraid i would sue if the forks broke! LOl! Mondex, who done yours? I think i may try a machine shop next! A winter project fo sho! I run a stock carb, and uni filter, and a full cobra exhaust, thinkin of takin the cobra off though, to loud and trike seems to run too lean! Not sure.

[TobyBigRed]

Has anybody tried HMF/FMF fatties on a BR?

[TheRealFatShady]

Any of you guys with lifted front/rear ends, any tipping problems on trails/hills?

Also, for the guys running a TRX300 carb, any issues common with those? Choke plunger or some other choke/cold weather piece? Apparently that's why I got my trx300 parts, they didn't want to buy an $80 carb piece.

It would have been done....but an old 'friend' sabotaged the engine and broke the inner crank case.

[mtsnieg]

I've been thinkin about lifting mine like Mondexbrute's. In his build thread he says he's runnin 2.5" wheel spacers in the back so I think it'd be pretty stable. I've been wantin some spacers for the rear anyways, and 2 more inches of ground clearance with the lift would be priceless. I'm always bottoming out in the mud.

http://www.3wheelerworld.com/showthr...lifted+big+red