challanger 1800 plug fouling.

[MikeG]

A good friend of mine has a challanger 1800 jet boat (Twin raves) & has a
problem with plugs fouling about every 5 running hours. The boat is not run
hard, and spends a lot of time on slow tours of the lake.

Any ideas what can be changed to eliminate the fouling, or is this a
byproduct of a high rev PWC motor being installed in a boat used for
crusing.

TIA

Michael

[Virgil Naff]

Wrong Engines for application; however, a good tuner can make it run
reliably at low speed. You will have to invest in electronic water
injection along with carb and rave valve changes.
The Yamaha Exciter 270 or 135 runs clean at low speed.

Good luck,
V Naff

[W.S. O'Neal]

Mike,
Adjust the carbs to lean it out some. Try putting in some BR7ES plugs.

Bill O'Neal
WCM

--
Bill @ E-MAIL: Water...@worldnet.att.net
MikeG wrote in message <01bdabb6$baf41d80$dbd70b26@mikeg>...

[Charles Ledbetter]

What a retarded response. You don't need any "electronic water injection",
carb changes, or rave valve changes. Who cares what the Yamaha does since
that wasn't even the question?

The engines are out of tune. Have your dealer send a mechanic out to the
lake with you. He can adjust the carbs on the water and it'll run just
fine.

Charles

Virgil Naff wrote in message <6o4ust$qjl$1...@altos.inmind.com>...

[MikeG]

Gee....I reccomended a total loss & a NOS system.......Am I on the right
track or should I just R&R to Yamaha motors?

Charles Ledbetter <char...@NOSPAMbellsouth.net> wrote in article
<URqp1.1488$Nx6.1...@news3.mco.bellsouth.net>...

[MikeG]

Thanks Bill,

The owner wanted to see a few responses before he let me tune it <G>.

Michael

P.S. Want to take a stab at the balance question I posted?

W.S. O'Neal <Water...@worldnet.att.net> wrote in article
<6o579c$b...@bgtnsc02.worldnet.att.net>...

[Corey Sullivan]

>A good friend of mine has a challanger 1800 jet boat (Twin raves) & has a
>problem with plugs fouling about every 5 running hours. The boat is not run
>hard, and spends a lot of time on slow tours of the lake.
>
> Any ideas what can be changed to eliminate the fouling, or is this a
>byproduct of a high rev PWC motor being installed in a boat used for
>crusing.
>
> TIA
>
> Michael

What year is it? if it's a 97, then there are tons of fixes (updates), that should
be performed.

--
Corey Sullivan
t...@dnai.com
http://www.sea-doo.net
http://www.tracywatercraft.com
---===* 1995 XP971 *===---

[MR-HPT]

Virgil get real. What in this world water injections to do with over
rich mixture?

[MR-HPT]

Michael. Tell you friend to open up this thing to clean up carbon deposits.
There is couple things he can do, such as lowering compression, installing
smaller or re pitching existing impellers, or lager jet pump nozzles and MSD
ignition enhancer.
Regards George http://www.hpt-sport.com

[MikeG]

Where would the information be posted......I don't trust our local hack
dealers.

TIA
MIchael
Corey Sullivan <t...@dnai.com> wrote in article
<6o5sfb$7q2$2...@pollux.dnai.com>...

> >A good friend of mine has a challanger 1800 jet boat (Twin raves) & has
a
> >problem with plugs fouling about every 5 running hours. The boat is not
run
> >hard, and spends a lot of time on slow tours of the lake.

> What year is it? if it's a 97, then there are tons of fixes (updates),

[WHardy1902]

>>Wrong Engines for application; however, a good tuner can make it run
>>reliably at low speed. You will have to invest in electronic water
>>injection along with carb and rave valve changes.
>>The Yamaha Exciter 270 or 135 runs clean at low speed.
>>
>>Good luck,

They just smoke like hell.

Not Harding
It's Hardy
As in Hardy Har Har